Home / 302,152.14-453,228.21-142,128.60

Finding the Fourth Proportional to 302,152.14, 453,228.21 and 142,128.60

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Solution

The fourth proportional to 302,152.14, 453,228.21 and 142,128.60 is: 213,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,152.14 : 453,228.21 = 142,128.60 : x
  2. Step 2: Convert to fraction form
    302,152.14/453,228.21 = 142,128.60/x
  3. Step 3: Cross multiply
    302,152.14x = 453,228.21 × 142,128.60
  4. Step 4: Simplify right side
    302,152.14x = 64,416,690,967.81
  5. Step 5: Solve for x
    x = 64,416,690,967.81/302,152.14
  6. Step 6: Final answer
    x = 213,192.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.