Home / 286,510.07-429,357.63-211,036.70

Finding the Fourth Proportional to 286,510.07, 429,357.63 and 211,036.70

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Solution

The fourth proportional to 286,510.07, 429,357.63 and 211,036.70 is: 316,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,510.07 : 429,357.63 = 211,036.70 : x
  2. Step 2: Convert to fraction form
    286,510.07/429,357.63 = 211,036.70/x
  3. Step 3: Cross multiply
    286,510.07x = 429,357.63 × 211,036.70
  4. Step 4: Simplify right side
    286,510.07x = 90,610,217,355.02
  5. Step 5: Solve for x
    x = 90,610,217,355.02/286,510.07
  6. Step 6: Final answer
    x = 316,254.91

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1.5x scale

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.