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Finding the Fourth Proportional to 329,186.40, 493,779.60 and 310,815.60

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Solution

The fourth proportional to 329,186.40, 493,779.60 and 310,815.60 is: 466,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,186.40 : 493,779.60 = 310,815.60 : x
  2. Step 2: Convert to fraction form
    329,186.40/493,779.60 = 310,815.60/x
  3. Step 3: Cross multiply
    329,186.40x = 493,779.60 × 310,815.60
  4. Step 4: Simplify right side
    329,186.40x = 153,474,402,641.76
  5. Step 5: Solve for x
    x = 153,474,402,641.76/329,186.40
  6. Step 6: Final answer
    x = 466,223.40

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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.