Home / 313,478.48-470,285.76-103,108.52

Finding the Fourth Proportional to 313,478.48, 470,285.76 and 103,108.52

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Solution

The fourth proportional to 313,478.48, 470,285.76 and 103,108.52 is: 154,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,478.48 : 470,285.76 = 103,108.52 : x
  2. Step 2: Convert to fraction form
    313,478.48/470,285.76 = 103,108.52/x
  3. Step 3: Cross multiply
    313,478.48x = 470,285.76 × 103,108.52
  4. Step 4: Simplify right side
    313,478.48x = 48,490,468,690.68
  5. Step 5: Solve for x
    x = 48,490,468,690.68/313,478.48
  6. Step 6: Final answer
    x = 154,685.16

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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.