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Finding the Fourth Proportional to 385,528, 532,356.96 and 242,527.36

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Solution

The fourth proportional to 385,528, 532,356.96 and 242,527.36 is: 334,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,528 : 532,356.96 = 242,527.36 : x
  2. Step 2: Convert to fraction form
    385,528/532,356.96 = 242,527.36/x
  3. Step 3: Cross multiply
    385,528x = 532,356.96 × 242,527.36
  4. Step 4: Simplify right side
    385,528x = 129,111,128,086.43
  5. Step 5: Solve for x
    x = 129,111,128,086.43/385,528
  6. Step 6: Final answer
    x = 334,894.30

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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.