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Finding the Fourth Proportional to 356,707.60, 535,062.36 and 90,468.28

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Solution

The fourth proportional to 356,707.60, 535,062.36 and 90,468.28 is: 135,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,707.60 : 535,062.36 = 90,468.28 : x
  2. Step 2: Convert to fraction form
    356,707.60/535,062.36 = 90,468.28/x
  3. Step 3: Cross multiply
    356,707.60x = 535,062.36 × 90,468.28
  4. Step 4: Simplify right side
    356,707.60x = 48,406,171,401.94
  5. Step 5: Solve for x
    x = 48,406,171,401.94/356,707.60
  6. Step 6: Final answer
    x = 135,702.66

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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.