Home / 282,617.07-390,011.47-155,300.87

Finding the Fourth Proportional to 282,617.07, 390,011.47 and 155,300.87

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Solution

The fourth proportional to 282,617.07, 390,011.47 and 155,300.87 is: 214,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,617.07 : 390,011.47 = 155,300.87 : x
  2. Step 2: Convert to fraction form
    282,617.07/390,011.47 = 155,300.87/x
  3. Step 3: Cross multiply
    282,617.07x = 390,011.47 × 155,300.87
  4. Step 4: Simplify right side
    282,617.07x = 60,569,118,262.67
  5. Step 5: Solve for x
    x = 60,569,118,262.67/282,617.07
  6. Step 6: Final answer
    x = 214,315.14

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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.