Home / 312,222.69-430,875.18-191,430.61

Finding the Fourth Proportional to 312,222.69, 430,875.18 and 191,430.61

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Solution

The fourth proportional to 312,222.69, 430,875.18 and 191,430.61 is: 264,179.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,222.69 : 430,875.18 = 191,430.61 : x
  2. Step 2: Convert to fraction form
    312,222.69/430,875.18 = 191,430.61/x
  3. Step 3: Cross multiply
    312,222.69x = 430,875.18 × 191,430.61
  4. Step 4: Simplify right side
    312,222.69x = 82,482,697,464.07
  5. Step 5: Solve for x
    x = 82,482,697,464.07/312,222.69
  6. Step 6: Final answer
    x = 264,179.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.