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Finding the Fourth Proportional to 278,466.60, 417,699.90 and 160,501.80

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Solution

The fourth proportional to 278,466.60, 417,699.90 and 160,501.80 is: 240,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,466.60 : 417,699.90 = 160,501.80 : x
  2. Step 2: Convert to fraction form
    278,466.60/417,699.90 = 160,501.80/x
  3. Step 3: Cross multiply
    278,466.60x = 417,699.90 × 160,501.80
  4. Step 4: Simplify right side
    278,466.60x = 67,041,585,809.82
  5. Step 5: Solve for x
    x = 67,041,585,809.82/278,466.60
  6. Step 6: Final answer
    x = 240,752.70

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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.