Home / 282,811.64-390,274.81-155,484.50

Finding the Fourth Proportional to 282,811.64, 390,274.81 and 155,484.50

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Solution

The fourth proportional to 282,811.64, 390,274.81 and 155,484.50 is: 214,565.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,811.64 : 390,274.81 = 155,484.50 : x
  2. Step 2: Convert to fraction form
    282,811.64/390,274.81 = 155,484.50/x
  3. Step 3: Cross multiply
    282,811.64x = 390,274.81 × 155,484.50
  4. Step 4: Simplify right side
    282,811.64x = 60,681,681,355.36
  5. Step 5: Solve for x
    x = 60,681,681,355.36/282,811.64
  6. Step 6: Final answer
    x = 214,565.72

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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.