Home / 219,225.18-302,527.56-122,428.01

Finding the Fourth Proportional to 219,225.18, 302,527.56 and 122,428.01

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Solution

The fourth proportional to 219,225.18, 302,527.56 and 122,428.01 is: 168,948.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,225.18 : 302,527.56 = 122,428.01 : x
  2. Step 2: Convert to fraction form
    219,225.18/302,527.56 = 122,428.01/x
  3. Step 3: Cross multiply
    219,225.18x = 302,527.56 × 122,428.01
  4. Step 4: Simplify right side
    219,225.18x = 37,037,847,667.72
  5. Step 5: Solve for x
    x = 37,037,847,667.72/219,225.18
  6. Step 6: Final answer
    x = 168,948.88

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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.