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Finding the Fourth Proportional to 247,782.60, 371,688 and 70,275.57

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Solution

The fourth proportional to 247,782.60, 371,688 and 70,275.57 is: 105,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,782.60 : 371,688 = 70,275.57 : x
  2. Step 2: Convert to fraction form
    247,782.60/371,688 = 70,275.57/x
  3. Step 3: Cross multiply
    247,782.60x = 371,688 × 70,275.57
  4. Step 4: Simplify right side
    247,782.60x = 26,120,586,062.16
  5. Step 5: Solve for x
    x = 26,120,586,062.16/247,782.60
  6. Step 6: Final answer
    x = 105,417.35

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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.