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Finding the Fourth Proportional to 304,312.80, 455,432.40 and 304,312.80

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Solution

The fourth proportional to 304,312.80, 455,432.40 and 304,312.80 is: 455,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,312.80 : 455,432.40 = 304,312.80 : x
  2. Step 2: Convert to fraction form
    304,312.80/455,432.40 = 304,312.80/x
  3. Step 3: Cross multiply
    304,312.80x = 455,432.40 × 304,312.80
  4. Step 4: Simplify right side
    304,312.80x = 138,593,908,854.72
  5. Step 5: Solve for x
    x = 138,593,908,854.72/304,312.80
  6. Step 6: Final answer
    x = 455,432.40

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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.