Home / 435,831.20-653,746.80-155,247.20

Finding the Fourth Proportional to 435,831.20, 653,746.80 and 155,247.20

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Solution

The fourth proportional to 435,831.20, 653,746.80 and 155,247.20 is: 232,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,831.20 : 653,746.80 = 155,247.20 : x
  2. Step 2: Convert to fraction form
    435,831.20/653,746.80 = 155,247.20/x
  3. Step 3: Cross multiply
    435,831.20x = 653,746.80 × 155,247.20
  4. Step 4: Simplify right side
    435,831.20x = 101,492,360,208.96
  5. Step 5: Solve for x
    x = 101,492,360,208.96/435,831.20
  6. Step 6: Final answer
    x = 232,870.80

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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.