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Finding the Fourth Proportional to 315,959, 473,955.78 and 94,360.28

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Solution

The fourth proportional to 315,959, 473,955.78 and 94,360.28 is: 141,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,959 : 473,955.78 = 94,360.28 : x
  2. Step 2: Convert to fraction form
    315,959/473,955.78 = 94,360.28/x
  3. Step 3: Cross multiply
    315,959x = 473,955.78 × 94,360.28
  4. Step 4: Simplify right side
    315,959x = 44,722,600,108.42
  5. Step 5: Solve for x
    x = 44,722,600,108.42/315,959
  6. Step 6: Final answer
    x = 141,545.58

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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.