Home / 282,901.66-390,396.51-155,577.26

Finding the Fourth Proportional to 282,901.66, 390,396.51 and 155,577.26

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Solution

The fourth proportional to 282,901.66, 390,396.51 and 155,577.26 is: 214,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,901.66 : 390,396.51 = 155,577.26 : x
  2. Step 2: Convert to fraction form
    282,901.66/390,396.51 = 155,577.26/x
  3. Step 3: Cross multiply
    282,901.66x = 390,396.51 × 155,577.26
  4. Step 4: Simplify right side
    282,901.66x = 60,736,818,119.37
  5. Step 5: Solve for x
    x = 60,736,818,119.37/282,901.66
  6. Step 6: Final answer
    x = 214,692.33

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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.