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Finding the Fourth Proportional to 315,819.02, 473,802.90 and 102,586.27

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Solution

The fourth proportional to 315,819.02, 473,802.90 and 102,586.27 is: 153,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,819.02 : 473,802.90 = 102,586.27 : x
  2. Step 2: Convert to fraction form
    315,819.02/473,802.90 = 102,586.27/x
  3. Step 3: Cross multiply
    315,819.02x = 473,802.90 × 102,586.27
  4. Step 4: Simplify right side
    315,819.02x = 48,605,671,041.68
  5. Step 5: Solve for x
    x = 48,605,671,041.68/315,819.02
  6. Step 6: Final answer
    x = 153,903.56

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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.