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Finding the Fourth Proportional to 476,159.52, 657,119.10 and 261,307.28

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Solution

The fourth proportional to 476,159.52, 657,119.10 and 261,307.28 is: 360,614.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,159.52 : 657,119.10 = 261,307.28 : x
  2. Step 2: Convert to fraction form
    476,159.52/657,119.10 = 261,307.28/x
  3. Step 3: Cross multiply
    476,159.52x = 657,119.10 × 261,307.28
  4. Step 4: Simplify right side
    476,159.52x = 171,710,004,657.05
  5. Step 5: Solve for x
    x = 171,710,004,657.05/476,159.52
  6. Step 6: Final answer
    x = 360,614.45

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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.