Home / 218,841.21-302,000.85-118,239.21

Finding the Fourth Proportional to 218,841.21, 302,000.85 and 118,239.21

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Solution

The fourth proportional to 218,841.21, 302,000.85 and 118,239.21 is: 163,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,841.21 : 302,000.85 = 118,239.21 : x
  2. Step 2: Convert to fraction form
    218,841.21/302,000.85 = 118,239.21/x
  3. Step 3: Cross multiply
    218,841.21x = 302,000.85 × 118,239.21
  4. Step 4: Simplify right side
    218,841.21x = 35,708,341,923.33
  5. Step 5: Solve for x
    x = 35,708,341,923.33/218,841.21
  6. Step 6: Final answer
    x = 163,170.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.