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Finding the Fourth Proportional to 291,702.45, 437,553.68 and 125,490.45

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Solution

The fourth proportional to 291,702.45, 437,553.68 and 125,490.45 is: 188,235.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,702.45 : 437,553.68 = 125,490.45 : x
  2. Step 2: Convert to fraction form
    291,702.45/437,553.68 = 125,490.45/x
  3. Step 3: Cross multiply
    291,702.45x = 437,553.68 × 125,490.45
  4. Step 4: Simplify right side
    291,702.45x = 54,908,807,574.90
  5. Step 5: Solve for x
    x = 54,908,807,574.90/291,702.45
  6. Step 6: Final answer
    x = 188,235.68

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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.