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Finding the Fourth Proportional to 346,860.95, 478,745.27 and 210,866.06

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Solution

The fourth proportional to 346,860.95, 478,745.27 and 210,866.06 is: 291,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,860.95 : 478,745.27 = 210,866.06 : x
  2. Step 2: Convert to fraction form
    346,860.95/478,745.27 = 210,866.06/x
  3. Step 3: Cross multiply
    346,860.95x = 478,745.27 × 210,866.06
  4. Step 4: Simplify right side
    346,860.95x = 100,951,129,761.82
  5. Step 5: Solve for x
    x = 100,951,129,761.82/346,860.95
  6. Step 6: Final answer
    x = 291,042.08

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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.