Home / 282,816.63-390,288.24-153,756.36

Finding the Fourth Proportional to 282,816.63, 390,288.24 and 153,756.36

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Solution

The fourth proportional to 282,816.63, 390,288.24 and 153,756.36 is: 212,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,816.63 : 390,288.24 = 153,756.36 : x
  2. Step 2: Convert to fraction form
    282,816.63/390,288.24 = 153,756.36/x
  3. Step 3: Cross multiply
    282,816.63x = 390,288.24 × 153,756.36
  4. Step 4: Simplify right side
    282,816.63x = 60,009,299,133.21
  5. Step 5: Solve for x
    x = 60,009,299,133.21/282,816.63
  6. Step 6: Final answer
    x = 212,184.48

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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.