Home / 218,989.50-302,206.23-118,388.22

Finding the Fourth Proportional to 218,989.50, 302,206.23 and 118,388.22

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Solution

The fourth proportional to 218,989.50, 302,206.23 and 118,388.22 is: 163,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,989.50 : 302,206.23 = 118,388.22 : x
  2. Step 2: Convert to fraction form
    218,989.50/302,206.23 = 118,388.22/x
  3. Step 3: Cross multiply
    218,989.50x = 302,206.23 × 118,388.22
  4. Step 4: Simplify right side
    218,989.50x = 35,777,657,642.61
  5. Step 5: Solve for x
    x = 35,777,657,642.61/218,989.50
  6. Step 6: Final answer
    x = 163,376.13

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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.