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Finding the Fourth Proportional to 475,437.80, 712,983.90 and 238,701.80

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Solution

The fourth proportional to 475,437.80, 712,983.90 and 238,701.80 is: 357,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,437.80 : 712,983.90 = 238,701.80 : x
  2. Step 2: Convert to fraction form
    475,437.80/712,983.90 = 238,701.80/x
  3. Step 3: Cross multiply
    475,437.80x = 712,983.90 × 238,701.80
  4. Step 4: Simplify right side
    475,437.80x = 170,190,540,301.02
  5. Step 5: Solve for x
    x = 170,190,540,301.02/475,437.80
  6. Step 6: Final answer
    x = 357,965.94

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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.