Home / 261,579.54-392,541.60-143,333.90

Finding the Fourth Proportional to 261,579.54, 392,541.60 and 143,333.90

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Solution

The fourth proportional to 261,579.54, 392,541.60 and 143,333.90 is: 215,095.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,579.54 : 392,541.60 = 143,333.90 : x
  2. Step 2: Convert to fraction form
    261,579.54/392,541.60 = 143,333.90/x
  3. Step 3: Cross multiply
    261,579.54x = 392,541.60 × 143,333.90
  4. Step 4: Simplify right side
    261,579.54x = 56,264,518,440.24
  5. Step 5: Solve for x
    x = 56,264,518,440.24/261,579.54
  6. Step 6: Final answer
    x = 215,095.26

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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.