Home / 282,136.53-389,347.34-154,814.25

Finding the Fourth Proportional to 282,136.53, 389,347.34 and 154,814.25

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Solution

The fourth proportional to 282,136.53, 389,347.34 and 154,814.25 is: 213,643.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,136.53 : 389,347.34 = 154,814.25 : x
  2. Step 2: Convert to fraction form
    282,136.53/389,347.34 = 154,814.25/x
  3. Step 3: Cross multiply
    282,136.53x = 389,347.34 × 154,814.25
  4. Step 4: Simplify right side
    282,136.53x = 60,276,516,431.60
  5. Step 5: Solve for x
    x = 60,276,516,431.60/282,136.53
  6. Step 6: Final answer
    x = 213,643.08

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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.