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Finding the Fourth Proportional to 304,030.45, 418,666.08 and 260,691.40

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Solution

The fourth proportional to 304,030.45, 418,666.08 and 260,691.40 is: 358,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,030.45 : 418,666.08 = 260,691.40 : x
  2. Step 2: Convert to fraction form
    304,030.45/418,666.08 = 260,691.40/x
  3. Step 3: Cross multiply
    304,030.45x = 418,666.08 × 260,691.40
  4. Step 4: Simplify right side
    304,030.45x = 109,142,646,527.71
  5. Step 5: Solve for x
    x = 109,142,646,527.71/304,030.45
  6. Step 6: Final answer
    x = 358,985.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.