Home / 320,320.65-442,030.17-191,280.81

Finding the Fourth Proportional to 320,320.65, 442,030.17 and 191,280.81

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Solution

The fourth proportional to 320,320.65, 442,030.17 and 191,280.81 is: 263,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,320.65 : 442,030.17 = 191,280.81 : x
  2. Step 2: Convert to fraction form
    320,320.65/442,030.17 = 191,280.81/x
  3. Step 3: Cross multiply
    320,320.65x = 442,030.17 × 191,280.81
  4. Step 4: Simplify right side
    320,320.65x = 84,551,888,962.04
  5. Step 5: Solve for x
    x = 84,551,888,962.04/320,320.65
  6. Step 6: Final answer
    x = 263,960.16

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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.