Home / 286,258.40-429,836.88-242,459.36

Finding the Fourth Proportional to 286,258.40, 429,836.88 and 242,459.36

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Solution

The fourth proportional to 286,258.40, 429,836.88 and 242,459.36 is: 364,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,258.40 : 429,836.88 = 242,459.36 : x
  2. Step 2: Convert to fraction form
    286,258.40/429,836.88 = 242,459.36/x
  3. Step 3: Cross multiply
    286,258.40x = 429,836.88 × 242,459.36
  4. Step 4: Simplify right side
    286,258.40x = 104,217,974,829.20
  5. Step 5: Solve for x
    x = 104,217,974,829.20/286,258.40
  6. Step 6: Final answer
    x = 364,069.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.