Home / 339,764.10-509,646.15-103,106.40

Finding the Fourth Proportional to 339,764.10, 509,646.15 and 103,106.40

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Solution

The fourth proportional to 339,764.10, 509,646.15 and 103,106.40 is: 154,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,764.10 : 509,646.15 = 103,106.40 : x
  2. Step 2: Convert to fraction form
    339,764.10/509,646.15 = 103,106.40/x
  3. Step 3: Cross multiply
    339,764.10x = 509,646.15 × 103,106.40
  4. Step 4: Simplify right side
    339,764.10x = 52,547,779,800.36
  5. Step 5: Solve for x
    x = 52,547,779,800.36/339,764.10
  6. Step 6: Final answer
    x = 154,659.60

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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.