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Finding the Fourth Proportional to 388,527.83, 536,160.24 and 216,445.55

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Solution

The fourth proportional to 388,527.83, 536,160.24 and 216,445.55 is: 298,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,527.83 : 536,160.24 = 216,445.55 : x
  2. Step 2: Convert to fraction form
    388,527.83/536,160.24 = 216,445.55/x
  3. Step 3: Cross multiply
    388,527.83x = 536,160.24 × 216,445.55
  4. Step 4: Simplify right side
    388,527.83x = 116,049,495,354.13
  5. Step 5: Solve for x
    x = 116,049,495,354.13/388,527.83
  6. Step 6: Final answer
    x = 298,690.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.