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Finding the Fourth Proportional to 388,275.56, 535,894.58 and 235,397.07

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Solution

The fourth proportional to 388,275.56, 535,894.58 and 235,397.07 is: 324,893.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,275.56 : 535,894.58 = 235,397.07 : x
  2. Step 2: Convert to fraction form
    388,275.56/535,894.58 = 235,397.07/x
  3. Step 3: Cross multiply
    388,275.56x = 535,894.58 × 235,397.07
  4. Step 4: Simplify right side
    388,275.56x = 126,148,012,783.90
  5. Step 5: Solve for x
    x = 126,148,012,783.90/388,275.56
  6. Step 6: Final answer
    x = 324,893.01

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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.