Home / 312,308.19-430,986.69-169,068.23

Finding the Fourth Proportional to 312,308.19, 430,986.69 and 169,068.23

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Solution

The fourth proportional to 312,308.19, 430,986.69 and 169,068.23 is: 233,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,308.19 : 430,986.69 = 169,068.23 : x
  2. Step 2: Convert to fraction form
    312,308.19/430,986.69 = 169,068.23/x
  3. Step 3: Cross multiply
    312,308.19x = 430,986.69 × 169,068.23
  4. Step 4: Simplify right side
    312,308.19x = 72,866,156,831.86
  5. Step 5: Solve for x
    x = 72,866,156,831.86/312,308.19
  6. Step 6: Final answer
    x = 233,314.91

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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.