Home / 380,117.28-524,559.60-218,912.16

Finding the Fourth Proportional to 380,117.28, 524,559.60 and 218,912.16

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Solution

The fourth proportional to 380,117.28, 524,559.60 and 218,912.16 is: 302,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,117.28 : 524,559.60 = 218,912.16 : x
  2. Step 2: Convert to fraction form
    380,117.28/524,559.60 = 218,912.16/x
  3. Step 3: Cross multiply
    380,117.28x = 524,559.60 × 218,912.16
  4. Step 4: Simplify right side
    380,117.28x = 114,832,475,084.74
  5. Step 5: Solve for x
    x = 114,832,475,084.74/380,117.28
  6. Step 6: Final answer
    x = 302,097.49

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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.