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Finding the Fourth Proportional to 331,573.64, 496,970.91 and 153,706.28

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Solution

The fourth proportional to 331,573.64, 496,970.91 and 153,706.28 is: 230,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,573.64 : 496,970.91 = 153,706.28 : x
  2. Step 2: Convert to fraction form
    331,573.64/496,970.91 = 153,706.28/x
  3. Step 3: Cross multiply
    331,573.64x = 496,970.91 × 153,706.28
  4. Step 4: Simplify right side
    331,573.64x = 76,387,547,359.46
  5. Step 5: Solve for x
    x = 76,387,547,359.46/331,573.64
  6. Step 6: Final answer
    x = 230,378.83

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1.5x scale

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.