Home / 495,220.80-742,831.20-140,230.20

Finding the Fourth Proportional to 495,220.80, 742,831.20 and 140,230.20

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Solution

The fourth proportional to 495,220.80, 742,831.20 and 140,230.20 is: 210,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,220.80 : 742,831.20 = 140,230.20 : x
  2. Step 2: Convert to fraction form
    495,220.80/742,831.20 = 140,230.20/x
  3. Step 3: Cross multiply
    495,220.80x = 742,831.20 × 140,230.20
  4. Step 4: Simplify right side
    495,220.80x = 104,167,367,742.24
  5. Step 5: Solve for x
    x = 104,167,367,742.24/495,220.80
  6. Step 6: Final answer
    x = 210,345.30

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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.