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Finding the Fourth Proportional to 310,253.02, 428,148.93 and 176,117.02

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Solution

The fourth proportional to 310,253.02, 428,148.93 and 176,117.02 is: 243,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,253.02 : 428,148.93 = 176,117.02 : x
  2. Step 2: Convert to fraction form
    310,253.02/428,148.93 = 176,117.02/x
  3. Step 3: Cross multiply
    310,253.02x = 428,148.93 × 176,117.02
  4. Step 4: Simplify right side
    310,253.02x = 75,404,313,667.79
  5. Step 5: Solve for x
    x = 75,404,313,667.79/310,253.02
  6. Step 6: Final answer
    x = 243,041.35

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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.