Home / 347,875.20-521,812.80-111,225.60

Finding the Fourth Proportional to 347,875.20, 521,812.80 and 111,225.60

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Solution

The fourth proportional to 347,875.20, 521,812.80 and 111,225.60 is: 166,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,875.20 : 521,812.80 = 111,225.60 : x
  2. Step 2: Convert to fraction form
    347,875.20/521,812.80 = 111,225.60/x
  3. Step 3: Cross multiply
    347,875.20x = 521,812.80 × 111,225.60
  4. Step 4: Simplify right side
    347,875.20x = 58,038,941,767.68
  5. Step 5: Solve for x
    x = 58,038,941,767.68/347,875.20
  6. Step 6: Final answer
    x = 166,838.40

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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.