Home / 283,011.04-390,548.88-155,683.84

Finding the Fourth Proportional to 283,011.04, 390,548.88 and 155,683.84

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Solution

The fourth proportional to 283,011.04, 390,548.88 and 155,683.84 is: 214,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,011.04 : 390,548.88 = 155,683.84 : x
  2. Step 2: Convert to fraction form
    283,011.04/390,548.88 = 155,683.84/x
  3. Step 3: Cross multiply
    283,011.04x = 390,548.88 × 155,683.84
  4. Step 4: Simplify right side
    283,011.04x = 60,802,149,346.10
  5. Step 5: Solve for x
    x = 60,802,149,346.10/283,011.04
  6. Step 6: Final answer
    x = 214,840.20

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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.