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Finding the Fourth Proportional to 302,538.60, 453,807.90 and 260,548.20

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Solution

The fourth proportional to 302,538.60, 453,807.90 and 260,548.20 is: 390,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,538.60 : 453,807.90 = 260,548.20 : x
  2. Step 2: Convert to fraction form
    302,538.60/453,807.90 = 260,548.20/x
  3. Step 3: Cross multiply
    302,538.60x = 453,807.90 × 260,548.20
  4. Step 4: Simplify right side
    302,538.60x = 118,238,831,490.78
  5. Step 5: Solve for x
    x = 118,238,831,490.78/302,538.60
  6. Step 6: Final answer
    x = 390,822.30

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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.