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Finding the Fourth Proportional to 302,585.40, 453,878.10 and 125,438.40

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Solution

The fourth proportional to 302,585.40, 453,878.10 and 125,438.40 is: 188,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,585.40 : 453,878.10 = 125,438.40 : x
  2. Step 2: Convert to fraction form
    302,585.40/453,878.10 = 125,438.40/x
  3. Step 3: Cross multiply
    302,585.40x = 453,878.10 × 125,438.40
  4. Step 4: Simplify right side
    302,585.40x = 56,933,742,659.04
  5. Step 5: Solve for x
    x = 56,933,742,659.04/302,585.40
  6. Step 6: Final answer
    x = 188,157.60

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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.