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Finding the Fourth Proportional to 358,656.40, 537,984.60 and 172,032.40

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Solution

The fourth proportional to 358,656.40, 537,984.60 and 172,032.40 is: 258,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,656.40 : 537,984.60 = 172,032.40 : x
  2. Step 2: Convert to fraction form
    358,656.40/537,984.60 = 172,032.40/x
  3. Step 3: Cross multiply
    358,656.40x = 537,984.60 × 172,032.40
  4. Step 4: Simplify right side
    358,656.40x = 92,550,781,901.04
  5. Step 5: Solve for x
    x = 92,550,781,901.04/358,656.40
  6. Step 6: Final answer
    x = 258,048.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.