Home / 316,685.10-474,907.35-103,402.38

Finding the Fourth Proportional to 316,685.10, 474,907.35 and 103,402.38

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Solution

The fourth proportional to 316,685.10, 474,907.35 and 103,402.38 is: 155,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,685.10 : 474,907.35 = 103,402.38 : x
  2. Step 2: Convert to fraction form
    316,685.10/474,907.35 = 103,402.38/x
  3. Step 3: Cross multiply
    316,685.10x = 474,907.35 × 103,402.38
  4. Step 4: Simplify right side
    316,685.10x = 49,106,550,269.49
  5. Step 5: Solve for x
    x = 49,106,550,269.49/316,685.10
  6. Step 6: Final answer
    x = 155,064.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.