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Finding the Fourth Proportional to 356,291.70, 534,437.61 and 90,052.98

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Solution

The fourth proportional to 356,291.70, 534,437.61 and 90,052.98 is: 135,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,291.70 : 534,437.61 = 90,052.98 : x
  2. Step 2: Convert to fraction form
    356,291.70/534,437.61 = 90,052.98/x
  3. Step 3: Cross multiply
    356,291.70x = 534,437.61 × 90,052.98
  4. Step 4: Simplify right side
    356,291.70x = 48,127,699,404.58
  5. Step 5: Solve for x
    x = 48,127,699,404.58/356,291.70
  6. Step 6: Final answer
    x = 135,079.49

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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.