Home / 346,870.51-478,758.47-210,875.63

Finding the Fourth Proportional to 346,870.51, 478,758.47 and 210,875.63

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Solution

The fourth proportional to 346,870.51, 478,758.47 and 210,875.63 is: 291,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,870.51 : 478,758.47 = 210,875.63 : x
  2. Step 2: Convert to fraction form
    346,870.51/478,758.47 = 210,875.63/x
  3. Step 3: Cross multiply
    346,870.51x = 478,758.47 × 210,875.63
  4. Step 4: Simplify right side
    346,870.51x = 100,958,490,530.92
  5. Step 5: Solve for x
    x = 100,958,490,530.92/346,870.51
  6. Step 6: Final answer
    x = 291,055.27

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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.