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Finding the Fourth Proportional to 328,966.40, 493,465.80 and 171,502.40

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Solution

The fourth proportional to 328,966.40, 493,465.80 and 171,502.40 is: 257,262.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,966.40 : 493,465.80 = 171,502.40 : x
  2. Step 2: Convert to fraction form
    328,966.40/493,465.80 = 171,502.40/x
  3. Step 3: Cross multiply
    328,966.40x = 493,465.80 × 171,502.40
  4. Step 4: Simplify right side
    328,966.40x = 84,630,569,017.92
  5. Step 5: Solve for x
    x = 84,630,569,017.92/328,966.40
  6. Step 6: Final answer
    x = 257,262.05

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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.