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Finding the Fourth Proportional to 360,285.52, 540,427.20 and 253,228.72

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Solution

The fourth proportional to 360,285.52, 540,427.20 and 253,228.72 is: 379,842.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,285.52 : 540,427.20 = 253,228.72 : x
  2. Step 2: Convert to fraction form
    360,285.52/540,427.20 = 253,228.72/x
  3. Step 3: Cross multiply
    360,285.52x = 540,427.20 × 253,228.72
  4. Step 4: Simplify right side
    360,285.52x = 136,851,688,109.18
  5. Step 5: Solve for x
    x = 136,851,688,109.18/360,285.52
  6. Step 6: Final answer
    x = 379,842.32

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1.5x scale

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.