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Finding the Fourth Proportional to 508,811.85, 763,328.48 and 153,816.59

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Solution

The fourth proportional to 508,811.85, 763,328.48 and 153,816.59 is: 230,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,811.85 : 763,328.48 = 153,816.59 : x
  2. Step 2: Convert to fraction form
    508,811.85/763,328.48 = 153,816.59/x
  3. Step 3: Cross multiply
    508,811.85x = 763,328.48 × 153,816.59
  4. Step 4: Simplify right side
    508,811.85x = 117,412,584,982.72
  5. Step 5: Solve for x
    x = 117,412,584,982.72/508,811.85
  6. Step 6: Final answer
    x = 230,758.35

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1.5x scale

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.