Home / 261,465.40-392,152.96-69,341.16

Finding the Fourth Proportional to 261,465.40, 392,152.96 and 69,341.16

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Solution

The fourth proportional to 261,465.40, 392,152.96 and 69,341.16 is: 103,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,465.40 : 392,152.96 = 69,341.16 : x
  2. Step 2: Convert to fraction form
    261,465.40/392,152.96 = 69,341.16/x
  3. Step 3: Cross multiply
    261,465.40x = 392,152.96 × 69,341.16
  4. Step 4: Simplify right side
    261,465.40x = 27,192,341,143.83
  5. Step 5: Solve for x
    x = 27,192,341,143.83/261,465.40
  6. Step 6: Final answer
    x = 103,999.77

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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.