Home / 340,678.45-470,130.06-187,730.76

Finding the Fourth Proportional to 340,678.45, 470,130.06 and 187,730.76

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Solution

The fourth proportional to 340,678.45, 470,130.06 and 187,730.76 is: 259,065.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,678.45 : 470,130.06 = 187,730.76 : x
  2. Step 2: Convert to fraction form
    340,678.45/470,130.06 = 187,730.76/x
  3. Step 3: Cross multiply
    340,678.45x = 470,130.06 × 187,730.76
  4. Step 4: Simplify right side
    340,678.45x = 88,257,873,285.14
  5. Step 5: Solve for x
    x = 88,257,873,285.14/340,678.45
  6. Step 6: Final answer
    x = 259,065.03

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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.