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Finding the Fourth Proportional to 202,159.47, 279,069.74 and 130,574.40

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Solution

The fourth proportional to 202,159.47, 279,069.74 and 130,574.40 is: 180,250.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,159.47 : 279,069.74 = 130,574.40 : x
  2. Step 2: Convert to fraction form
    202,159.47/279,069.74 = 130,574.40/x
  3. Step 3: Cross multiply
    202,159.47x = 279,069.74 × 130,574.40
  4. Step 4: Simplify right side
    202,159.47x = 36,439,363,858.66
  5. Step 5: Solve for x
    x = 36,439,363,858.66/202,159.47
  6. Step 6: Final answer
    x = 180,250.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.