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Finding the Third Proportional to 153,376 and 358,528

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Solution

The third proportional to 153,376 and 358,528 is: 838,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,376 : 358,528 = 358,528 : x
  2. Step 2: Convert to fraction form
    153,376/358,528 = 358,528/x
  3. Step 3: Cross multiply
    153,376x = 358,528 × 358,528
  4. Step 4: Simplify right side
    153,376x = 128,542,326,784
  5. Step 5: Solve for x
    x = 128,542,326,784/153,376
  6. Step 6: Final answer
    x = 838,086.32

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.