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Finding the Fourth Proportional to 556,935.40, 835,403.10 and 136,215.40

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Solution

The fourth proportional to 556,935.40, 835,403.10 and 136,215.40 is: 204,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,935.40 : 835,403.10 = 136,215.40 : x
  2. Step 2: Convert to fraction form
    556,935.40/835,403.10 = 136,215.40/x
  3. Step 3: Cross multiply
    556,935.40x = 835,403.10 × 136,215.40
  4. Step 4: Simplify right side
    556,935.40x = 113,794,767,427.74
  5. Step 5: Solve for x
    x = 113,794,767,427.74/556,935.40
  6. Step 6: Final answer
    x = 204,323.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.