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Finding the Fourth Proportional to 313,341.06, 470,031.58 and 88,719.20

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Solution

The fourth proportional to 313,341.06, 470,031.58 and 88,719.20 is: 133,084.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,341.06 : 470,031.58 = 88,719.20 : x
  2. Step 2: Convert to fraction form
    313,341.06/470,031.58 = 88,719.20/x
  3. Step 3: Cross multiply
    313,341.06x = 470,031.58 × 88,719.20
  4. Step 4: Simplify right side
    313,341.06x = 41,700,825,707.40
  5. Step 5: Solve for x
    x = 41,700,825,707.40/313,341.06
  6. Step 6: Final answer
    x = 133,084.46

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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.