Home / 274,030.48-378,113.70-153,133.12

Finding the Fourth Proportional to 274,030.48, 378,113.70 and 153,133.12

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Solution

The fourth proportional to 274,030.48, 378,113.70 and 153,133.12 is: 211,296.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,030.48 : 378,113.70 = 153,133.12 : x
  2. Step 2: Convert to fraction form
    274,030.48/378,113.70 = 153,133.12/x
  3. Step 3: Cross multiply
    274,030.48x = 378,113.70 × 153,133.12
  4. Step 4: Simplify right side
    274,030.48x = 57,901,730,595.74
  5. Step 5: Solve for x
    x = 57,901,730,595.74/274,030.48
  6. Step 6: Final answer
    x = 211,296.68

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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.