Home / 218,881.13-302,055.95-118,279.13

Finding the Fourth Proportional to 218,881.13, 302,055.95 and 118,279.13

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Solution

The fourth proportional to 218,881.13, 302,055.95 and 118,279.13 is: 163,225.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,881.13 : 302,055.95 = 118,279.13 : x
  2. Step 2: Convert to fraction form
    218,881.13/302,055.95 = 118,279.13/x
  3. Step 3: Cross multiply
    218,881.13x = 302,055.95 × 118,279.13
  4. Step 4: Simplify right side
    218,881.13x = 35,726,913,762.74
  5. Step 5: Solve for x
    x = 35,726,913,762.74/218,881.13
  6. Step 6: Final answer
    x = 163,225.19

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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.