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Finding the Fourth Proportional to 315,931.03, 473,921.03 and 105,569.71

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Solution

The fourth proportional to 315,931.03, 473,921.03 and 105,569.71 is: 158,362.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,931.03 : 473,921.03 = 105,569.71 : x
  2. Step 2: Convert to fraction form
    315,931.03/473,921.03 = 105,569.71/x
  3. Step 3: Cross multiply
    315,931.03x = 473,921.03 × 105,569.71
  4. Step 4: Simplify right side
    315,931.03x = 50,031,705,700.00
  5. Step 5: Solve for x
    x = 50,031,705,700.00/315,931.03
  6. Step 6: Final answer
    x = 158,362.75

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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.