Home / 346,783.09-520,279.54-245,776.50

Finding the Fourth Proportional to 346,783.09, 520,279.54 and 245,776.50

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Solution

The fourth proportional to 346,783.09, 520,279.54 and 245,776.50 is: 368,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,783.09 : 520,279.54 = 245,776.50 : x
  2. Step 2: Convert to fraction form
    346,783.09/520,279.54 = 245,776.50/x
  3. Step 3: Cross multiply
    346,783.09x = 520,279.54 × 245,776.50
  4. Step 4: Simplify right side
    346,783.09x = 127,872,484,362.81
  5. Step 5: Solve for x
    x = 127,872,484,362.81/346,783.09
  6. Step 6: Final answer
    x = 368,739.10

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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.