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Finding the Fourth Proportional to 312,017.94, 430,572.51 and 176,030.28

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Solution

The fourth proportional to 312,017.94, 430,572.51 and 176,030.28 is: 242,914.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,017.94 : 430,572.51 = 176,030.28 : x
  2. Step 2: Convert to fraction form
    312,017.94/430,572.51 = 176,030.28/x
  3. Step 3: Cross multiply
    312,017.94x = 430,572.51 × 176,030.28
  4. Step 4: Simplify right side
    312,017.94x = 75,793,799,495.60
  5. Step 5: Solve for x
    x = 75,793,799,495.60/312,017.94
  6. Step 6: Final answer
    x = 242,914.88

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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.