Home / 389,610.40-584,415.60-152,831.20

Finding the Fourth Proportional to 389,610.40, 584,415.60 and 152,831.20

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Solution

The fourth proportional to 389,610.40, 584,415.60 and 152,831.20 is: 229,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,610.40 : 584,415.60 = 152,831.20 : x
  2. Step 2: Convert to fraction form
    389,610.40/584,415.60 = 152,831.20/x
  3. Step 3: Cross multiply
    389,610.40x = 584,415.60 × 152,831.20
  4. Step 4: Simplify right side
    389,610.40x = 89,316,937,446.72
  5. Step 5: Solve for x
    x = 89,316,937,446.72/389,610.40
  6. Step 6: Final answer
    x = 229,246.80

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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.