Home / 282,249.51-389,501.02-153,188.21

Finding the Fourth Proportional to 282,249.51, 389,501.02 and 153,188.21

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Solution

The fourth proportional to 282,249.51, 389,501.02 and 153,188.21 is: 211,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,249.51 : 389,501.02 = 153,188.21 : x
  2. Step 2: Convert to fraction form
    282,249.51/389,501.02 = 153,188.21/x
  3. Step 3: Cross multiply
    282,249.51x = 389,501.02 × 153,188.21
  4. Step 4: Simplify right side
    282,249.51x = 59,666,964,637.76
  5. Step 5: Solve for x
    x = 59,666,964,637.76/282,249.51
  6. Step 6: Final answer
    x = 211,397.94

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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.