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Finding the Fourth Proportional to 315,017.61, 472,441.66 and 115,339.04

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Solution

The fourth proportional to 315,017.61, 472,441.66 and 115,339.04 is: 172,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,017.61 : 472,441.66 = 115,339.04 : x
  2. Step 2: Convert to fraction form
    315,017.61/472,441.66 = 115,339.04/x
  3. Step 3: Cross multiply
    315,017.61x = 472,441.66 × 115,339.04
  4. Step 4: Simplify right side
    315,017.61x = 54,490,967,290.29
  5. Step 5: Solve for x
    x = 54,490,967,290.29/315,017.61
  6. Step 6: Final answer
    x = 172,977.53

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1.5x scale

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.