Home / 282,802.43-390,274.30-155,478.26

Finding the Fourth Proportional to 282,802.43, 390,274.30 and 155,478.26

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Solution

The fourth proportional to 282,802.43, 390,274.30 and 155,478.26 is: 214,563.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,802.43 : 390,274.30 = 155,478.26 : x
  2. Step 2: Convert to fraction form
    282,802.43/390,274.30 = 155,478.26/x
  3. Step 3: Cross multiply
    282,802.43x = 390,274.30 × 155,478.26
  4. Step 4: Simplify right side
    282,802.43x = 60,679,170,256.75
  5. Step 5: Solve for x
    x = 60,679,170,256.75/282,802.43
  6. Step 6: Final answer
    x = 214,563.82

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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.