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Finding the Fourth Proportional to 257,471.50, 355,332.54 and 144,316.12

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Solution

The fourth proportional to 257,471.50, 355,332.54 and 144,316.12 is: 199,168.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,471.50 : 355,332.54 = 144,316.12 : x
  2. Step 2: Convert to fraction form
    257,471.50/355,332.54 = 144,316.12/x
  3. Step 3: Cross multiply
    257,471.50x = 355,332.54 × 144,316.12
  4. Step 4: Simplify right side
    257,471.50x = 51,280,213,482.54
  5. Step 5: Solve for x
    x = 51,280,213,482.54/257,471.50
  6. Step 6: Final answer
    x = 199,168.50

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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.