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Finding the Fourth Proportional to 366,437.86, 549,521.69 and 126,490.75

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Solution

The fourth proportional to 366,437.86, 549,521.69 and 126,490.75 is: 189,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,437.86 : 549,521.69 = 126,490.75 : x
  2. Step 2: Convert to fraction form
    366,437.86/549,521.69 = 126,490.75/x
  3. Step 3: Cross multiply
    366,437.86x = 549,521.69 × 126,490.75
  4. Step 4: Simplify right side
    366,437.86x = 69,509,408,703.11
  5. Step 5: Solve for x
    x = 69,509,408,703.11/366,437.86
  6. Step 6: Final answer
    x = 189,689.49

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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.