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Finding the Fourth Proportional to 349,736.40, 525,641.40 and 304,117.20

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Solution

The fourth proportional to 349,736.40, 525,641.40 and 304,117.20 is: 457,077.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,736.40 : 525,641.40 = 304,117.20 : x
  2. Step 2: Convert to fraction form
    349,736.40/525,641.40 = 304,117.20/x
  3. Step 3: Cross multiply
    349,736.40x = 525,641.40 × 304,117.20
  4. Step 4: Simplify right side
    349,736.40x = 159,856,590,772.08
  5. Step 5: Solve for x
    x = 159,856,590,772.08/349,736.40
  6. Step 6: Final answer
    x = 457,077.36

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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.