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Finding the Fourth Proportional to 360,547.86, 540,440.41 and 135,811.05

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Solution

The fourth proportional to 360,547.86, 540,440.41 and 135,811.05 is: 203,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,547.86 : 540,440.41 = 135,811.05 : x
  2. Step 2: Convert to fraction form
    360,547.86/540,440.41 = 135,811.05/x
  3. Step 3: Cross multiply
    360,547.86x = 540,440.41 × 135,811.05
  4. Step 4: Simplify right side
    360,547.86x = 73,397,779,544.53
  5. Step 5: Solve for x
    x = 73,397,779,544.53/360,547.86
  6. Step 6: Final answer
    x = 203,572.92

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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.