Home / 282,771.22-390,214.38-155,445.98

Finding the Fourth Proportional to 282,771.22, 390,214.38 and 155,445.98

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Solution

The fourth proportional to 282,771.22, 390,214.38 and 155,445.98 is: 214,510.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,771.22 : 390,214.38 = 155,445.98 : x
  2. Step 2: Convert to fraction form
    282,771.22/390,214.38 = 155,445.98/x
  3. Step 3: Cross multiply
    282,771.22x = 390,214.38 × 155,445.98
  4. Step 4: Simplify right side
    282,771.22x = 60,657,256,709.19
  5. Step 5: Solve for x
    x = 60,657,256,709.19/282,771.22
  6. Step 6: Final answer
    x = 214,510.01

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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.