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Finding the Fourth Proportional to 342,802.87, 473,011.71 and 215,388.25

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Solution

The fourth proportional to 342,802.87, 473,011.71 and 215,388.25 is: 297,200.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,802.87 : 473,011.71 = 215,388.25 : x
  2. Step 2: Convert to fraction form
    342,802.87/473,011.71 = 215,388.25/x
  3. Step 3: Cross multiply
    342,802.87x = 473,011.71 × 215,388.25
  4. Step 4: Simplify right side
    342,802.87x = 101,881,164,446.41
  5. Step 5: Solve for x
    x = 101,881,164,446.41/342,802.87
  6. Step 6: Final answer
    x = 297,200.44

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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.