Home / 480,200.16-661,885.92-340,545.36

Finding the Fourth Proportional to 480,200.16, 661,885.92 and 340,545.36

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Solution

The fourth proportional to 480,200.16, 661,885.92 and 340,545.36 is: 469,392.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,200.16 : 661,885.92 = 340,545.36 : x
  2. Step 2: Convert to fraction form
    480,200.16/661,885.92 = 340,545.36/x
  3. Step 3: Cross multiply
    480,200.16x = 661,885.92 × 340,545.36
  4. Step 4: Simplify right side
    480,200.16x = 225,402,178,905.33
  5. Step 5: Solve for x
    x = 225,402,178,905.33/480,200.16
  6. Step 6: Final answer
    x = 469,392.14

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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.