Home / 277,018.09-382,289.42-156,165.28

Finding the Fourth Proportional to 277,018.09, 382,289.42 and 156,165.28

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Solution

The fourth proportional to 277,018.09, 382,289.42 and 156,165.28 is: 215,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,018.09 : 382,289.42 = 156,165.28 : x
  2. Step 2: Convert to fraction form
    277,018.09/382,289.42 = 156,165.28/x
  3. Step 3: Cross multiply
    277,018.09x = 382,289.42 × 156,165.28
  4. Step 4: Simplify right side
    277,018.09x = 59,700,334,315.34
  5. Step 5: Solve for x
    x = 59,700,334,315.34/277,018.09
  6. Step 6: Final answer
    x = 215,510.60

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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.