Home / 442,831.60-664,312.20-232,485.40

Finding the Fourth Proportional to 442,831.60, 664,312.20 and 232,485.40

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Solution

The fourth proportional to 442,831.60, 664,312.20 and 232,485.40 is: 348,762.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,831.60 : 664,312.20 = 232,485.40 : x
  2. Step 2: Convert to fraction form
    442,831.60/664,312.20 = 232,485.40/x
  3. Step 3: Cross multiply
    442,831.60x = 664,312.20 × 232,485.40
  4. Step 4: Simplify right side
    442,831.60x = 154,442,887,541.88
  5. Step 5: Solve for x
    x = 154,442,887,541.88/442,831.60
  6. Step 6: Final answer
    x = 348,762.12

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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.