Home / 283,042.89-390,598.61-155,718.18

Finding the Fourth Proportional to 283,042.89, 390,598.61 and 155,718.18

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Solution

The fourth proportional to 283,042.89, 390,598.61 and 155,718.18 is: 214,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,042.89 : 390,598.61 = 155,718.18 : x
  2. Step 2: Convert to fraction form
    283,042.89/390,598.61 = 155,718.18/x
  3. Step 3: Cross multiply
    283,042.89x = 390,598.61 × 155,718.18
  4. Step 4: Simplify right side
    283,042.89x = 60,823,303,881.14
  5. Step 5: Solve for x
    x = 60,823,303,881.14/283,042.89
  6. Step 6: Final answer
    x = 214,890.77

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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.