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Finding the Fourth Proportional to 177,987.70, 266,981.55 and 53,328.70

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Solution

The fourth proportional to 177,987.70, 266,981.55 and 53,328.70 is: 79,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,987.70 : 266,981.55 = 53,328.70 : x
  2. Step 2: Convert to fraction form
    177,987.70/266,981.55 = 53,328.70/x
  3. Step 3: Cross multiply
    177,987.70x = 266,981.55 × 53,328.70
  4. Step 4: Simplify right side
    177,987.70x = 14,237,778,985.49
  5. Step 5: Solve for x
    x = 14,237,778,985.49/177,987.70
  6. Step 6: Final answer
    x = 79,993.05

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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.