Home / 309,907.20-464,925.60-99,566.40

Finding the Fourth Proportional to 309,907.20, 464,925.60 and 99,566.40

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Solution

The fourth proportional to 309,907.20, 464,925.60 and 99,566.40 is: 149,370.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,907.20 : 464,925.60 = 99,566.40 : x
  2. Step 2: Convert to fraction form
    309,907.20/464,925.60 = 99,566.40/x
  3. Step 3: Cross multiply
    309,907.20x = 464,925.60 × 99,566.40
  4. Step 4: Simplify right side
    309,907.20x = 46,290,968,259.84
  5. Step 5: Solve for x
    x = 46,290,968,259.84/309,907.20
  6. Step 6: Final answer
    x = 149,370.42

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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.