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Finding the Fourth Proportional to 302,407.80, 453,611.70 and 197,345.40

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Solution

The fourth proportional to 302,407.80, 453,611.70 and 197,345.40 is: 296,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,407.80 : 453,611.70 = 197,345.40 : x
  2. Step 2: Convert to fraction form
    302,407.80/453,611.70 = 197,345.40/x
  3. Step 3: Cross multiply
    302,407.80x = 453,611.70 × 197,345.40
  4. Step 4: Simplify right side
    302,407.80x = 89,518,182,381.18
  5. Step 5: Solve for x
    x = 89,518,182,381.18/302,407.80
  6. Step 6: Final answer
    x = 296,018.10

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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.