Home / 313,920.90-470,897.85-103,575.24

Finding the Fourth Proportional to 313,920.90, 470,897.85 and 103,575.24

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Solution

The fourth proportional to 313,920.90, 470,897.85 and 103,575.24 is: 155,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,920.90 : 470,897.85 = 103,575.24 : x
  2. Step 2: Convert to fraction form
    313,920.90/470,897.85 = 103,575.24/x
  3. Step 3: Cross multiply
    313,920.90x = 470,897.85 × 103,575.24
  4. Step 4: Simplify right side
    313,920.90x = 48,773,357,829.23
  5. Step 5: Solve for x
    x = 48,773,357,829.23/313,920.90
  6. Step 6: Final answer
    x = 155,368.30

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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.