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Finding the Fourth Proportional to 470,337.87, 649,078.35 and 255,490.23

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Solution

The fourth proportional to 470,337.87, 649,078.35 and 255,490.23 is: 352,583.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,337.87 : 649,078.35 = 255,490.23 : x
  2. Step 2: Convert to fraction form
    470,337.87/649,078.35 = 255,490.23/x
  3. Step 3: Cross multiply
    470,337.87x = 649,078.35 × 255,490.23
  4. Step 4: Simplify right side
    470,337.87x = 165,833,176,929.52
  5. Step 5: Solve for x
    x = 165,833,176,929.52/470,337.87
  6. Step 6: Final answer
    x = 352,583.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.