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Finding the Fourth Proportional to 407,287.92, 562,030.32 and 225,988.36

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Solution

The fourth proportional to 407,287.92, 562,030.32 and 225,988.36 is: 311,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,287.92 : 562,030.32 = 225,988.36 : x
  2. Step 2: Convert to fraction form
    407,287.92/562,030.32 = 225,988.36/x
  3. Step 3: Cross multiply
    407,287.92x = 562,030.32 × 225,988.36
  4. Step 4: Simplify right side
    407,287.92x = 127,012,310,287.08
  5. Step 5: Solve for x
    x = 127,012,310,287.08/407,287.92
  6. Step 6: Final answer
    x = 311,848.95

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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.