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Finding the Fourth Proportional to 343,037.08, 514,508.90 and 90,296.40

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Solution

The fourth proportional to 343,037.08, 514,508.90 and 90,296.40 is: 135,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,037.08 : 514,508.90 = 90,296.40 : x
  2. Step 2: Convert to fraction form
    343,037.08/514,508.90 = 90,296.40/x
  3. Step 3: Cross multiply
    343,037.08x = 514,508.90 × 90,296.40
  4. Step 4: Simplify right side
    343,037.08x = 46,458,301,437.96
  5. Step 5: Solve for x
    x = 46,458,301,437.96/343,037.08
  6. Step 6: Final answer
    x = 135,432.30

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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.